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Nonesterified Fatty Acids and Cardiovascular Mortality in Elderly Men with CKD
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cardiovascular epidemiology.
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2015 (English)In: American Society of Nephrology. Clinical Journal, ISSN 1555-9041, Vol. 10, no 4, 584-591 p.Article in journal (Refereed) Published
Abstract [en]

Background and objectives Although nonesterified fatty acids (NEFAs) are essential as energy substrate for the myocardium, an excess of circulating NEFAs can be harmful. This study aimed to assess plausible relationships between serum NEFA and mortality due to cardiovascular disease (CVD) in individuals with CKD. Design, setting, participants, & measurements This was a prospective cohort study from the third examination cycle of the Uppsala LongitudinaL Study of Adult Men, a population-based survey of 1221 elderly men aged 70-71 years residing in Uppsala, Sweden. Data collection took place during 1991-1995. All participants had measures of kidney function; this study investigated 623 (51.7%) of these patients with manifest CKD (defined as either eGFR<60 ml/min per 1.73 m(2) or urine albumin excretion rate >= 20 mu g/min). Follow-up for mortality was done from examination date until death or December 31, 2007. After a median follow-up of 14 years (nterquartile range, 8-16.8), associations of NEFAs with mortality (related to all causes, CVD, ischemic heart disease [IHD], or acute myocardial infarction) were ascertained. Results The median serum NEFA was 14.1 mg/dl (interquartile range, 11.3-17.8). No association was found with measures of kidney function. Diabetes and serum triglycerides were the only multivariate correlates of NEFA. During follow-up, 453 participants died, of which 209 deaths were due to CVD, including 88 IHD deaths, with 41 attributed to acute myocardial infarction (AMI). In fully adjusted covariates, serum NEFA was an independent risk factor for all-cause mortality (hazard ratio [HR] per log(2) increase, 1.22; 95% confidence interval [95% CI], 1.00 to 1.48) and CVD-related death (HR, 1.51; 95% CI, 1.15 to 1.99), including both IHD (HR, 1.51; 95% CI, 1.00 to 2.32) and AMI mortality (HR, 2.08; 95% CI, 1.09 to 3.98). Conclusions Elevated serum NEFA associated with CVD mortality, and particularly with mortality due to AMI, in a homogeneous population of older men with moderate CKD.

Place, publisher, year, edition, pages
2015. Vol. 10, no 4, 584-591 p.
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Urology and Nephrology
URN: urn:nbn:se:uu:diva-252696DOI: 10.2215/CJN.08830914ISI: 000352463400009PubMedID: 25637632OAI: oai:DiVA.org:uu-252696DiVA: diva2:813404
Available from: 2015-05-22 Created: 2015-05-11 Last updated: 2015-05-22Bibliographically approved

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Ärnlöv, JohanCederholm, TommySjögren, PerRisérus, Ulf
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